Keyfix NCCTL Brochure

The NCCTL is for use in an exterior masonry skin in conjunction with a non-masonry inner leaf such as a steel frame system, the NCCTL is a highly efficient and practical solution to the challenge of non-combustible cavity detailing. In buildings over 11m in height, Document B prevents the use of plastic DPCs, galvanised lintels cannot be used without a DPC, as the DPC protects the galvanised surface against attack from chemicals present within mortars etc. Stainless steel trays cannot be used with galvanised lintels due to galvanic corrosion caused by reactions between dissimilar materials.